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Finding the Fourth Proportional to 255,555.92, 383,352.42 and 103,680.08

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Solution

The fourth proportional to 255,555.92, 383,352.42 and 103,680.08 is: 155,527.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,555.92 : 383,352.42 = 103,680.08 : x
  2. Step 2: Convert to fraction form
    255,555.92/383,352.42 = 103,680.08/x
  3. Step 3: Cross multiply
    255,555.92x = 383,352.42 × 103,680.08
  4. Step 4: Simplify right side
    255,555.92x = 39,746,009,573.79
  5. Step 5: Solve for x
    x = 39,746,009,573.79/255,555.92
  6. Step 6: Final answer
    x = 155,527.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.